<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>12_盒模型</title>
    <style>
      * {
        margin: 0;
        padding: 0;
      }
      body {
        height: 100vh;
      }
      .container {
        width: 100vw;
        height: 100%;
        background-color: pink;
        background-image: url("https://img2.baidu.com/it/u=1825212264,1490942993&fm=253&fmt=auto&app=138&f=JPEG?w=1423&h=800");
        background-repeat: no-repeat;
        background-size: cover;
        /* background-position: 50px 50px; */
      }
    </style>
  </head>
  <body>
    <div class="container"></div>
  </body>
</html>
